baker



7(No' Model.) 4 Sheets-Sheet 1'.

T. BAM-IIR.

PAPER BAG MACHINE. No. 878,878. 7 LG. s Patepted Nov. 29, 1887.

. SL" "1 b 8 8., 8 8" u E) L flt Witnesses. "l ,'p" lil/V/V'Ta (No Model.) l 4 Sheets-Sheet. 2. T.' BAKER.

PAPER BAG MACHINE.

No. 373,876. 7m:Patanted Nov?. 29, 1887.

, L nl., f

(Np Model.) 4 shees-sneet s.

T. BAKER.

PAPER BAG MACHINE.

Patented Nov. 2'9, 1887.

Witnesses:

NJPETERS, Phnxwlimmuu'dwr, wnhingwn. D. C.

(No Model.) 4 sheets-suenen 4. f

l TBAKBR. PAPER BAG MACHINE.

No. 373876. H Patptea Nov. 29, 1887l Witness es: I nventor:

UNITED STATES ATENT rrr@` THEODORE BAKER, OF STILLWATER, NEW YORK, ASSIGNOR TO HOVARD P. MOSHER, OF SAME PLACE.

PAPER-BAG MACHINE.

SPECIFICATION forming part of Letters Patent No. 373,876, dated November 29, 1887.

' Applicatnn meu July s, lesa. serial No. 100,022. (No model.)

To @ZZ whom it may concern:

Be lt known that I, THEoDoRE BAKER, of

4the village of Stillwater, county of Saratoga,

and State of New York, have invented a new and useful Improvement in Paper-Bag Malfzhines, of which the following is a specilical lon.

My invention relates to certain improve ments in paper-bag machines, and more par# ticularly to such as make bags from a single strip of paper doubled in the nliddle and the flaps pasted together for closing the sides and forming the bottolll, with the united edges of hledoutt'old attached on one side to the entrant In the accompanying four sheets of drawings, forming a part of this specilication, there are shown ten figures illustrating a machine for making paper bags, which machine contains my improvements, with the saule designation of parts by letter-reference used in all of them. Figure 1 illustrates a longitudinal central vertical section taken through the, machine and its parts. Fig. 2 represents a top view of the machine, and Fig. 3 an elevation taken from the delivery end of the apparatus, and Fig. ,4 an inclined vertical section taken on the line a," no of Fig. 1. Fig. 5 illustrates in perspective the cutter-roller removed from the machine, and Fig. 6 shows one of the paste-conveyers as removed from the apparatus. Fig. 7 illustrates in perspective, in an enlarged proportion,as removed from the machine, a tilting table nlade with a fold-plate, guiding and folding iingers for producing in each side of the stripl from wllich the bags are made an opposite half of the entrant fold. Fig. 8 shows a cross-section of said tilting table and connected parts, taken on the line :r3 x3 of Fig. 7. Fig. 9 is a perspective ofthe bag made by the machine; alld Fig. l0 is a crosssection of the same, -taken on the line x* x"y of Fig. 9.

The several yparts of the apparatus thus illustrated are 4indicated by letter-reference, and their function is explained as follows:

The letter P designates a paper-roller hung in bearings, and from which roller the papel' is supplied to the machine in a continuous strip, A2.

The letter R' indicates a roller, actuated as will be subsequently described, over which the strip of paper coming from the roll P first passes.

The letter F designates a folding-plate, over and along which the strip of paper moves after having left the roller R to pass around the Apressing and folding roller a. The latter roller has its bearings in the two vertical studs S S, and its length betweenits bearings is less than the width of the entering strip, so that as the latter enters between the studs S S to pass' around the roller a a fold is turned on its edges by the combined action of the studs, the fold-plate F', and the roller a, the fold thus made being turned downwardlyT aud inwardly, and as thus made constitutes the outfold of the subsequently-'formedentrant fold. From the pressing and folding roller h the strip passes under and over the roller a2, which latter also has its bearings in the studs S S, and fronl the roller a2 the strip moves over the roller R2 to pass under the guide-roller R3 and from thence beneath the spring fold-plate F2. /Vhen the strip commences to move beneath the last,which is narrower than the strip and made to have the requisite width for the bag, the finger-form folders-d d engage with and turn in the sides of the strip, and produce oppositely on each of them a half of the entrant f0ld,the edges of the strip having been pasted for union during their passage, as will hereinafter be described.

The roller R3, the spring fold-plate F2, and the finger-form folders d d are attached to and constructed on the tilting table T. The last is made with trunnions or journals J J, which turn in bearings O O, made in the machineframe F, so that this table at its end t is free to move up and down for adjustment to the tension ofthe strip. After each half of the entrant fold and the outfold on each inner side of tlle'latter have been produced, the strip passes between the upper cutting-roller, C', and the lower roller, O2. The roller C contains a serratedy knife, K, constructed to be moved outwardly and inwardly in a groove or passage-way, g, made in its face parallel to the axis of said roller, as will subsequently be more fully described. The roller C2 contains a groove, u, adapted for the entrance of the serrated knife, and the two rollers C C2, being connected by the gears g2 g2, move together, and in their rotation the serrated knife is made to descend into the groove in the lower roller to severthe intermediately-placed strip.

Upon the circumferential face of the roller C there is placed a projecting blade, e, having a dull edge` which is arranged parallel to the axis of said roller, and on the roller C, parallel with the axis thereof and arranged so as to come in contact in revolution with the blade e, is a rubber cushion, b. When the blade e and the rubber cushion b come together as the two rollers C C2 rotate, there is imprinted into the passing strip a transverse fold-line, on which the cnd fold ofthe bag is subsequently produced.

Adjacent tothe rubber cushion I), and so as to immediately follow it in rotation, are placed the prick-awls h iz, which are attached to and made to project from the surface of the roller C. These awls during the rotation of the two geared rollers run in the recess I, made cireumferentially on the face of the roller C', so as to prick into the intcrmediately-passing strip on the edge of said recess.

The letter M indicates a cushioned roller having its bearings in the brackets l?,3 Pfand arranged parallel to the roller C2. When thestrip passing between the rollers G and C2 reaches the point where the impress for the transverse fold is to be made and has passed it, the awls h h pierce the strip, so as to make it adhere to the roller C where punctured, and thus carry it down between the rollers M and C2, doubling the strip back on itself, as indicated by the dotted line af of Fig. 1, with its previously-pasted edges in impressed contact to unite them, while the rotation of the roller C brings the knife K around to sever the strip as its outer end is being folded to produce a bag. The bag, after being thus folded and cut, is drawn down by the roller C as thereon held by the awls until the comb E, which is provided with the slots w w, strips the bag from off the roller. The comb E is attached to the end of the machine, with its upper edge in contact with the surface of the roller C2, so that the edge of the comb thus placed underruns the bag, and the awls, when passing down with the rotation of the roller, are pulled from out the bag and the bag from off the roller.

The holes made in the bag by the awls do not injure it,because they are made so near the outer edges of the bag that they are covered by those portionsof the bellows-folds thatturn in and lie over the bottom when the bag is distended for use.

The letters L L' indicate pastevconveyers that are made to run in the paste-pans Z l and arranged on the same shaft as the rollers R. Their edges are in the form of a semicircle having a peripheral measurement equal to the length of the bag that is to be produced by folding the web back on itself. These pasters L as they rotate apply the paste to alternatingly-opposite portions of the web-edge, and then skip portions of it as they are rotated, the portions which they oppositely paste and omit being equal in length to that of the bag.

The edges thus pasted are then turned down;

as well as the unpasted portions, when the web is passing over the edge of the form-plate F', and over and under the rollers a a? between the studs S S. Then this has been done, the web in passing has produced in each side of it onehalf of the entrant side fold. The pasters L2 L2 are also semicircular in form and adapted to rotate with the roller R2, so as to receive paste from the pans Z2 l2, and these pasters are set nearer together than the pasters L', and are so rotated as to oppositely apply paste to that portion of the outfold which is folded down but not pasted onto the web. After these portions of the web-edges have been pasted, then these pasters L, by their form, skip or omit to paste the opposite sides of the web for a bag-length, so that when the web is folded back on itself as thus pasted the first fold of the outfold adheres tothe body with the other edge of the outfold pasted to it, but free from the body.

The cutter-roller C has agroove or passageway, g, made in its circumferential face parallel to its axis for the outwardand inward passage aud movement of the serrated knife K, and this knife outside of the roller ends is attached to the studs A A, of which there is one at each end of the roller, and each of which is IOO made with the outcurve q, so as to pass around the roller shaft bS". These studs are constructed to move in guideways at each end of the roller indicated at i, and each of which studs is made with an offset arm, a, projected therefrom, and to each of said arms, on its interior face, there is attached a spring-rod, r. On each of these rods there is arranged a helical spring, O7, each of the inner ends of which springs is connected with a stop, O2, as they are arranged at each end of said roller C. As thus constructed and attached, the knife K is forced outwardly from the groove or passageway against the force of the spring and returned by the latter when the force applied to the knife is withdrawn.

To operate theknife there are attached to the shaft S, outside ofthe roller C', the two disks D3, and on the perimeters of the latter there are made the cams C* C, each of which is arranged in opposite coincidence with the other. These cams have abrupt terminations, as indicated at o2.

The letters H H designate two hammers having their handles attached to the shaft S', the said shaft having its bearings in the brackets BL Baud the striking toe ends of said hammers being adapted to engage with the surfaces of the cams C4L C4 to run thereon as the latter are rotated, and to fall therefrom when the abrupt terminations are passed, and in falling to strike the adjacentends of the IIO ' cident groove u made in the roller C2 and sever the intermediately-placed strip. When the hammers have forced down the studs by striking the ends ofthe latter,(made to project abo've the edges of the disks D3 at that point,) the hammer ends engage with the disks D3 and are arrested in their descent thereon, so that the force of the blow is in part expended on the edges of said disks, and the distance that the stud and connected knife are moved is uniformly regulated thereby.

To actuate the machine power is applied to the pulley I3'3 on the shaft Si. At the opposite end of said shaft are constructed the beveled gears W W', which communicate motion to the shaft U. Upon the latter and the shaft of the roller R2 are arranged the gears W2 W2 to operate the said roller, and upon the shaft U and the shaft of the roller R are applied the connecting beveled gears KVS Wwhich communicate motion to the latter roller. The eX- terior face of the roller M is cushioned at m2, so that while it and the roller C2 are folding t the strip back on itself to uniteits pasted edges and complete the bag the awls on the roller C2 may enter the cushion where passing through the bag without interfering with the necessary impressing contact of the roller-surfaces.

The spring foldplate F2 is made to have the same width as that at which itis desired to fold the bag,and this fold-plate is attached on its upper surface to one end of a C-form spring, d3, with the other end ofthe lat-ter connected to the tilting table T. The finger-form foldersd d are also constructed to attach to the said table at their inner ends, and so as to be thereat in advance of the plate F2 so far as relates to an engagement with the entering strip, and where thus attached to be wider apart thanthe width of said fold-plate F2. From where attached to the table T the folders d d curve inwardly and upwardly for a short distance, and therefrom, as extended rearwardly, they approach each other until a proper degree of separation is made to produce the entrant fold in the sides of the passing strip. rIhe spring fold-plate F2 at its front where meeting the inward movement of the strip, as indicated at y, is slightly l curved upwardly. The table T, being hung on journals, as before described, sustains all the factorsl which produce the entrant fold, and the spring-plate F2, being automatically adjustable on the said table by means of the spring d3, the combined parts thus constructed and arranged readily and promptly adapt their operation to the tension of the strip thus passing. l

I am well aware that a cutter has been ar rangedwith a serrated knife constructed to be moved diametrically outwardly and inwardly from said roller, and these parts have been combined with a connected roller containing a coincident groove for the passage of said knife to thus sever a strip of paper.

I am also aware that awls have been used in a roller to draw downwardly between said roller and another roller a folded strip of paper to double the latter back on itself to produce a bag.

I am also aware that myinvcntion herein,

so far as relates to the foregoing elements dis-` claimed as old,is limited to theimprovements that I have made thereon and added thereto, and I make no claim to the combination,with the roll and its severing-blade,of the hammers and the means, substantially as described, for actuating them.

I am also aware that a paper-bag machine has been made with a pasting and folding mechanism, consisting of disks for applying a-series of short lines of paste to the edges of the web and means for folding over said edges, disks for applying lines of paste to the folded edges, and a former and fingers for folding over the edges of the web a second time, and I do not broadly claim such combination.

Having thus described myinvention, what I claim, and desire to secure by Letters Patent, 1s-

1. In a paper-bag machine, the combination of the roller C", formed with lthe recess I, and the roller C2, geared to the roller C and provided with awls h h, with the roller M,pro vided with the elastic covering m2, substantially as and for the purpose set forth.

2. The combination, in a paperbag machine, of the roller C', the serrated knife K, constructed to operate in said roller, as shown, the curved studs A at each endof said roller, the guideway 'L' at each end of said roller, the offset arm a on each of said studs, a springrod and encircling spring attached to each arm, and a stop on each spring connected with the end of the roller, as and for the purposes set forth.

3. In a paper-bag machine, the combination of the fold-plate F2, having turned-up en d i, the spring d3, and the finger-form folders d d', arranged to operate in the manner herein described.

4. In a paper-bag machine, the combination of the plate-folder F2, the spring d3, the finger-form folders d d', and vroller R3, arranged to operate in the manner as and for the purposes set forth.

5. In a paper-bag machine, the combination of the plate-folder F2, the spring d3, the iingenform folders d d, the guideroller R3, and the table T, connected by journals with the machine-frame, as and for the purposes set forth.

6. The combination of the roller It', the paste-conveyers L L,flxed on the shaft of said roller, the fold-plate F', the rollers a a2, shorter than the width of the bag-strip, the vertical studs S S, the roller It?, and the pasteconveyers L2 L, all substantially as specified.

IOO

IIO

7. In a paper-bag machine, the cornbina- Signed ab the city of Troy this 2d day of tion of the rollei1 G, formed with the recess I, July, 1883, and in our presence, Whose names the roller C2, geared to the roller C and proare hereto below by us written. vided with the awls hy h, the roller M, pro- THEODORE BAKER.

5 vided with the elast-ic covering m2, and the Witnesses:

comb E, formed with the slots w w, substan- CHARLES S. BRINTNALL, tizilly as and for the purposes seh fort-h. JAMES R. TORRANCE. 

